07
www.katusensor.com
Safety instructions are intended to protect users from dangerous situations and/or
prevent material damage. In the operating instructions, the severity of the potential risk can
be indicated by the following signal words:
install
Switches should only be installed in systems that do not exceed the maximum
pressure Pmax (see type label).Install switches only when power is off
(electrical, hydraulic/pneumatic).
!
danger
Vibration and violent vibration must be avoided during transportation.
Even if the switch housing is not damaged,
Internal components can also break down and cause failure.
!
caution
Analog quantity 4-20mA
brown
black
blue
white
1
2
3
4
F mA（flow）
T mA（temperature）
18-28VDC +
-
1
2
3
4
brown
black
blue
white
Power
Temperature analog quantity
Power supply -
Flow analog
FTS520 Wiring diagram
